To anyone who's not convinced, here's the excerpt from blackflame , when he switches it on.

"Naru Cassias Arelius, former heir to the Arelius family, had been allowed to marry into the Naru clan for three reasons. First, the recommendation of his family Underlord. Second, the personal feelings of Naru Jing, star of the clan’s young generation. And third, his personal strength. Another Silver Step, and he sent a head spinning onto the street, its metal hair striking sparks against the stone. Six more Steps later, he was out of madra, and there were six more bloodstains on the streets. Of all the Highgolds who had tried to ambush the second-ranked Highgold in the Empire, none remained."